The 18-year-old reality star documented it all on Snapchat.
Kylie Jenner is one sneaky little sister!
On Saturday, the 18-year-old reality star attended day two of the Coachella Valley Music and Arts Festival in Indio, California, where she spent the majority of the day Snapchatting away.
WATCH: Kylie Jenner Rocks Rainbow Braids For Coachella Day Two
In one of her many Snapchats posted from the desert, Kylie slyly exposed the nipple ring of her sister, Kendall Jenner, while they hung out at a pool party. Even though the lip kit maven hilariously zoomed in on the ring, it was pretty clear even without the lens, as Kendall was sporting a sheer lacy bralette.
Their stepbrother, Brody Jenner, was also at the party and apparently keeping a close watch on his youngest sister.
"So I'm at this party and my older brother is just stalking me," Kylie explained in the Snapchat video.
PHOTOS: See the Stars at Coachella 2016!
Later in the night, Kylie traded in her eye-catching bikini for a pair of fishnet stockings and a comfy T-shirt that featured her boyfriend’s face on it. In one of the snaps, she explained that she had found the Tyga tee at a vintage store.
In typical Kylie fashion, she modeled the shirt multiple times throughout the night while lip-syncing to hip-hop tracks being played in the background.
Her pal Hailey Baldwin got in on the action, too.
PHOTOS: Kylie Jenner Debuts 'Peach' Hair Just in Time for Coachella
But the most hilarious snap of them all was when Kylie used the app's popular face swap filter to switch her face with Tyga's.
"Hailey, Hailey, look, look, look," she said, giggling the entire time. "I'm Tyga!"
Meanwhile, Rob Kardashian took to Instagram to congratulate his little "sis" on landing a spot on the cover of Paper magazine's April issue by re-posting a photo the lip kit creator snapped during day one of the music festival.
"Congrats sis," he captioned it.
To hear more on Kendall and Kylie's Coachella adventures, watch the video below.
WATCH: Kylie and Kendall Jenner Party With Scott Disick at Coachella
